Foundations of Engineering

DIY Wooden Coasters

4-18-23

During class we learned what we would do for our new project, we are going to make DIY Wooden Coasters out of wood laying around the engineering class. Some tools that we are going to be using:

Planner Saw
Table Saw
Floor Drill Press
Orbital Sander

Planer saw Safety

Do's -Turn off before adjusting height - Clean area after done using - Keep eyes and ears protected with Goggles and ear muffs

Do Not's -Put any body parts in the hole -Pass wood with nails through the planner -Use the planner to shorten any other material besides wood -Wear lose clothing or hair

The Planer saw is used to remove width, paint, and markings off of wood

Table Saw

A table saw is used to make accurate and precise cuts on wood in the form of 3 types cross cut, ripping cut and a dado cut.

Do's

Wear safety equipment
Unplug before switching blades
Do not start with the blade engaged

Don'ts

Never saw free hand
Don't over reach
Never adjust saw or setup while saw is running
Never stand directly behind the wood you are feeding through the table saw

Floor drill press

A Floor drill press drills holes that can be very dangerous or impossible to drill by hand.

Do's

Remove chips with a brush, never by hand
Run drill at correct RPM for diameter of drill bit and material
Remove the chuck key before starting the drill press

Don'ts

Don't wear loose clothing or gloves, keep long hair tied back
Never adjust the drill press or setup while it is running
Do not force the drill with extra pressure

Orbital Sander

Orbital sanders are hand-held tools that work by rotating themselves to create a smooth surface.

Do's - wear safety goggles - don't let go of sander while powered on - don't horseplay

Do Not's - Let sanders make contact with skin - use tool without asking teacher - Use on objects that can be damaged by sander

Pine

This is the wood we will be using! For my base color being the most of it.

Walnut

This is the wood we will be using! For my other color being a little less.

Coaster Sketch

This is a picture of my coaster design

Geometric Motion Lamp

Introduction to the project, design process will be used with a lot of skills such as sketching, planning, coding, etc.

Rules we must follow for the project also requirements we must meet.

Ways electronics will be incorporated in the project and how it will gradually build up to a finished product.

We practice physical enclosure and gradually develop the skin ending off with a finished product.

Oct 20, 2022 at 3:12 PM.MOV

Led to blink slower

So first we plugged the USB into the computer and into the Pico. While, we plugged it in we had to hold down the button located near the USB port. Then, we copied the code from the docs and clicked "SAVE".

Oct 20, 2022 at 3:12 PM.MOV

Led to blink faster

So we used the same code as the last one and just changed one thing. The thing we changed is the time between the pauses of the lights from 1 to .3 increasing the blink speed.

IMG_170516408.MOV

Pico/External Led Blinking

Using the pico, leds, cords, and a USB. We made a blinking Led connected to the pico. We first plugged in the pico ,and made sure we opened and copied the code into the cope.py in mu.editor. Then we plugged the cords and Led into the pico and tested it. ending off into the video shown on the left.

stoplight.MOV

Stop light pattern

With this assignment, we did similar things we did with the "Pico/External Led Blinking" since we started off lining up the Leds with the code. Then we copied the code from the instructions into mu.editor. and we tested the lights in till we had everything plugged in right and the code working. Finally it ended off with a led traffic light featuring red, green, and yellow.

Draw 4 or more SPP idea development sketches

For this assignment I did 4 different sketches and made them 3d using the vanishing point. I also had to mark where I wanted the lights on the sketches too. Finally I added some shade to make them pop and look more realistic.

3d drawing of SPP sketch

I took my favorite sketch from the 4 sketches I did the last assignment. Doing the shading and the light labeling. For this one I also payed more attention to the sketching and the real life size of it.

Create your cut list

For the cut list I first started off by grabbing my old sketch of the shape. I then redrew that sketch on the grid paper, going corner to corner for measuring purposes. Every 4x4 box on the grid is 1 inch long, so I counted for every side and then wrote down my measurements. Finally I took the measurements of the main shape and made side pieces to give it a 3d shape once all pieces are made.

Prototype

To make the pyshical prototype I first had to cut out all my measurements out of card board. Then I labeled them by letter to sort them. Next I pieced the parts together and taped it together. Finally I ended off with the photo above.

Prototype

Another photo of my prototype for better view. Also for the design was going for a more 7 shape.

Laser cutter

In the picture this is a laser cutter but the specific brand is Glowforge. To use this machine in my next prototype I had to first use Inkscape (which is a tool used to draw shapes which can be done on a grid) to create the shapes. Then, you need to connect the device to the laser cutter. After, select the material you are going to cut and place it inside. Finally, the last step is to press the start button and after done cutting let the material cool.

Prototype #2

To start this second prototype we took perfect cardboard cuts made from the laser cutter and got some tape. Then like the last prototype I put the piece together one by one using tape to keep everything in place. Finally I left a single piece open and the lid loseer.

Laser Cut Perfect Prototype Using Glowforge

On the loose side of the prototype I used a stencil to poke holes then a pencil to make then bigger and more round. I did this to represent where and how I'm gonna put my led's into my design.

Coding

Doing the code was a very hard and long process maybe spending a week or longer on it. To start this process we started off by assigning the lights name like "B1 or W3". Then we made patterns using the names of the lights, and also named delays as 0.15 seconds. I made three patterns and put them on repeat on my own order. While going this process I faced a lot of trouble through from troubleshooting to completely having to start over.

Light pattern sketch

While working on the sketch I had to take time to sketch what patterns my lights would blink in. I first drew my shape 9 times to visualize motion through my drawing, then used a marker to make 3 different ideas with little descriptions.

IMG_158792831.MOV

Final 3D Prototype

Having the code and my laser cut prototype done I had to combine them to finish the prototype. First I had to make sure my lights were taped together for sturdiness. Next I had to trace the wires with my eyes to find out where to place the right leds to their spots and gluing them down. Finally I made sure to have everything plugged in and finished my final prototype!

IMG_6112.MOV

Final Design

Finishing the last project was fairly difficult. The laser cutter wouldn't fully cut through the wood after coping the shape of my prototype. Therefore, I had to pull the pieces apart and sand them to the my proffered shape, also gluing them together using wood glue. Then I added all my lights in order using hot glue. Finally I made a whole in the bottom of my lamp to have easy access to the cord.

Introduction to shop tools, shop safety, and design for Bandsaw Boxes.

Many standards will be presented that will make everything safe and fun for everyone

This project will let you be able yo use a variety of power tools and let you make something cool to take home. At the end of the project we will master using power tools!

Practice Puzzle 1

We used the ban saw to follow the lines as well as we could create puzzle-like shapes on the wood. Of course, we were wearing protective goggles.

Practice Puzzle 2

We all wrote our names on a piece of wood and then took turns trying to make the curves with the bandsaws. It was a challenge trying to follow the line but we ended off with a good end product.

Planer saw Safety

Do's -Turn off before adjusting height - Clean area after done using - Keep eyes and ears protected with Goggles and ear muffs

Do Not's -Put any body parts in the hole -Pass wood with nails through the planner -Use the planner to shorten any other material besides wood -Wear lose clothing or hair

The Planer saw is used to remove width, paint, and markings off of wood

Miter Saw Safety

Do's - Wear eye protection -reduce exposure to blade - After done using unplug

Do Not's - Don't touch the blade guard -Keep cord off of blade course - Don't measure the wood while cutting

The Miter Saw is pretty simple all you have to do is take the blade and slide it across the path to cut. It can =\/ very dangerous but if used properly a simple and fast tool.

Bandsaw

DO's - Wear protective Google -turn off when done using and unplug -clean up area

DONT's -don't distract people or be distracted - don't leave on after down operating -keep hand out of the blade

To use the bandsaw you turn it on and move whatever you are cutting slowly making turns if necessary keeping your fingers off the path of the blade. When down using the Bandsaw turn off the machine and unplug it.

8/16/22

I started off with a messy piece of wood with paint, holes, and soft spots. So first after making sure I had face and ear protection I smoothed the wood by shortening the planner accordantly and flipping the sides. Ending off with a smooth piece of wood.

Bandsaw Box Glue up

For this activity, we took the wood we ran through the planer and then cut it into 2 pieces one being 9 inches long the other about 10 inches using the Miter Saw. After, cutting the wood with the miter saw we then took wood glue and glued the pieces together and clipped them together.

SPP Design Sketches

Sketch #2

We learned step by step using vanishing points, horizon lines, and diagonal lines, rulers, paper, and a easer. This gave the box a 3D effect making it look like real cubes on the page.

Sketch #3

After a few practice sketches we got more of a hang of the concept of vanishing points, horizon lines, and diagonal lines. Being more conformable we used boxes and drew letters inside, then connected them to the horizon line and outlined. Finally, we erased access lines and ended up with letters with depth saying "run".

Single layer Practice Cut

After gluing together and clamped the 2 pieces of our bandsaw cut we noticed that one side was longer than the other. Therefore we made a cut using the miter saw.

Stencil Documentation

We used exacto knifes on vinyl stickers that our names were put on by a circuit machine used by my teacher. then after cutting out our names we put the sticker on a piece of cardboard just leaving the inside of the letters.

Stencil Spray Paint Demonstration

In the picture it shows my name but It was quite the process. First ,we cut out letters to our names using vinyl sticker paper. Then, we took the out part of the stickers and placed them neatly on a piece of cardboard. After that, we sprayed the stickers green and let them sit to dry. Finally, we took off the the sticker and ended up with our names spray.

Orbital Sander

Do's - wear safety goggles - don't let go of sander while powered on - don't horseplay

Do Not's - Let sanders make contact with skin - use tool without asking teacher - Use on objects that can be damaged by sander

To use the Orbital Sander you use it like a vacuum in the sense that you keep it moving in patterns. It also is held at the top and can be dangerous is made contact with skin while using.

Before bandsaw cut

Before we made the cut we sanded our pieces and it was just a block being 9in x 3in x 1.7in. and we drew a curfed line to cut inside.

After Bandsaw cut

After drawing the line we made a curved bandsaw cu t making a dip into our bandsaw for the future. While operation the bandsaw we used protective glasses and turned off after done operation the machine.

Cut out drawers and perimeter

the box in the image is a showing of the wood after the the Bandsaw cut but before we just had a sand down version of it. Before we even made the cut I measured 3/8ths of a inch on 3 sides of the box. then made cuts using the Bandsaw making 4 different pieces.

Glue Box Perimeter Back Together

After cutting off the perimeter and the drawers we had 4 pieces of wood and we glued all of them together with out the inside piece and the lid, making a handheld drawer shape for small items like pencils. The shape of the bandsaw after the glue up resembles the image to the left.

3D printed knobs

To make my 3d printed knobs I first started off with just one rectangle for the ball of my knobs. Then, I add a flattish sphere on the top of the retinular prism. Finally, I added a sphere at the top of the flat one then copied and pasted the shape making 2 knobs. App: TinkerCAD

3D printer

Do's

Select the correct file that belongs to you to print

Name the files of the designs to something remember

Save the design to the Sd card

add support where supports are needed on your design,

Don'ts:

when figure is printing don't touch the bed/platform .. its hot

When the figure is being printed do not touch the nozzle . . its hot

Do not try to touch the figure that's being printed. You can get your hand caught in the structure that moves and you are at rick to ruin the design

Turn off after done operation

Staining (finish all parts)

For this process we first started by getting all the safety equipment gloves, apron, and a piece of cloth. After getting all the equipment we would dip the cloth into the stain then spread it on the wood. Finally we would do multiple layers making the color darker and the right shade.

Staining Do's and Donts

Do's

Always use gloves and aprons

use flat head to open containers

clean area after done

Donts

Dont dip your whole hand into stain

Dont get stain onto your clothes or skin

Dont close without a hammer

Before Spray Paint Box

So first we started off by using the same vinyl sticker as last time with our name. Then, we placed it on the side of the bandsaw box with tape to cover the wood.

After Spray Paint Box

After having it all setup we placed cardboard on a table and then gave our spray paint cans a good shake. I sprayed painted as lightly as possible trying to even out the thickness then let it dry for the finished product.

Attach handles

We used hot glue or wood glue to attach our 3d model handles to the lids of our bandsaw boxes. I also made sure to glue the knobs 1 1/2 in from the ends making it symmetrical and as perfect as possible.

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